Home / 112,797.18-169,278.46-90,875.24

Finding the Fourth Proportional to 112,797.18, 169,278.46 and 90,875.24

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Solution

The fourth proportional to 112,797.18, 169,278.46 and 90,875.24 is: 136,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,797.18 : 169,278.46 = 90,875.24 : x
  2. Step 2: Convert to fraction form
    112,797.18/169,278.46 = 90,875.24/x
  3. Step 3: Cross multiply
    112,797.18x = 169,278.46 × 90,875.24
  4. Step 4: Simplify right side
    112,797.18x = 15,383,219,946.53
  5. Step 5: Solve for x
    x = 15,383,219,946.53/112,797.18
  6. Step 6: Final answer
    x = 136,379.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.